In May, she revealed that her breast cancer had returned after 25 years and spread to her back.
And for the first time since her latest diagnosis, Olivia Newton John, 68, has returned to Instagram.
On Saturday, the Grease actress shared a photo taken in February when she was in Chile performing at the Viña del Mar International Song Festival.
Olivia is currently undergoing a course of photon radiation therapy along with natural therapies for her cancer.
And while reports suggested she was having difficulty moving about during treatment, she was spotted on a shopping expedition earlier in the month.
The Australian actress looked to be in good spirits as she picked up some groceries from a supermarket in Santa Barbara.
Despite the shock news, Olivia has remained confident she would return to the stage for the second half of her album tour LIV ON, which had been postponed.
The 11-song collection is centered around overcoming trauma, including her own battle with breast cancer and losing her sister Rona to brain cancer in 2013.
In a statement released to People, Olivia revealed she was certain the treatment would be successful.
'I'm totally confident that my new journey will have a positive success story to inspire others!' she said.
'I am feeling good and enjoying total support from my family and friends, along with a team of wellness and medical practitioners both here in the US and at my Olivia Newton-John Cancer Wellness and Research Centre in Melbourne, Australia.'
Her husband John Easterling, 65, was also staying positive and told People: 'We both have the same unshakable belief that she’s going to have a wonderful success story.'
'We’re not trying to be positive. We have an absolute knowingness that we can turn this around,' he added.
Source: Daily Mail.
Olivia was first treated for breast cancer in 1992, at the age of 43 and underwent a partial mastectomy, chemotherapy and breast reconstruction.
Afterwards, she championed breast cancer awareness and in 2008 built the Olivia Newton-John Cancer and Wellness Centre in Melbourne, Australia.